Integrated Broadband Polarization Splitters Made by Ion-Exchange on Glass

Author

Parsy, Francois ; Ghibaudo, Elise ; Jamon, Damien ; Royer, Francois ; Broquin, Jean-Emmanuel

Author_Institution

IMEP-LaHC Lab. of Grenoble, Univ. de Grenoble Alpes, Grenoble, France

Volume

25

Issue

23

fYear

2013

fDate

Dec.1, 2013

Firstpage

2373

Lastpage

2376

Abstract

In this letter, we present the design, fabrication, and characterization of a broadband polarization splitter working in the 1550-nm transmission window. The device is an asymmetric Y-junction realized by Ag⁺/Na⁺ ion exchange on glass. The transverse electric (TE) output branch of the device filters out the residual transverse magnetic (TM) mode by radiation. Measurements show cross-talks better than (31.1±0.4) dB in TE and better than (32.7±0.4) dB in TM mode over a 70-nm bandwidth limited by the characterization source. Optimal values of, respectively, (33.6±0.4) dB and (37.2±0.4) dB were measured at 1540 nm. At this wavelength, the insertion losses are, respectively, (6.0±0.4) dB and (5.5±0.4) dB in TE and TM modes while the function losses are (0.65±0.12) dB and (0.35±0.12) dB, respectively.

Keywords

ion exchange; light polarisation; optical beam splitters; optical design techniques; optical fabrication; optical filters; optical glass; asymmetric Y-junction; broadband polarization splitters; filters; glass; insertion losses; ion exchange; ion-exchange; transverse electric; transverse magnetic; wavelength 1540 nm; wavelength 1550 nm; wavelength 70 nm; Broadband communication; Fabrication; Glass; Indexes; Optical losses; Optical polarization; Optical waveguides; Asymmetric Y-junction; integrated optics; ion-exchange; polarization splitter; radiative filtering;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2013.2286454

Filename

6648434